Census flow data

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Census flow data (also known as interaction data) are data that relate to flows of people between places. Whereas most census data relate to counts of people at single locations, flow data describe interactions between two locations - origins and destinations.

The most common flow data relate to migration and commuting flows, although data from the latest 2011 Census will also include information on movements between main and second addresses.

Migration and commuting data from the 1981, 1991, 2001 and 2011 Censuses are available through WICID, as well as some annual migration data derived from NHS patient registers.